Lockwood 3772NSFSS — Selector® 3772 MkII Universal Primary Lock HD Hub Spring 60mm Backset Satin Stainless
The Lockwood 3772NSFSS is the Selector® 3772 MkII Universal Primary Lock fitted with a heavy-duty hub spring for enhanced durability in high-use doors. With a 60 mm backset and Satin Stainless Steel finish, this mortice escape lock provides dependable single-action egress and multiple function configuration options, making it suitable for the most demanding commercial and institutional applications.
Estimated Warehouse Dispatch: 3 Days
Key Features
- Universal primary mortice lock body for the Selector® 3772 MkII platform.
- Fitted with heavy-duty hub spring for increased strength and extended service life.
- Escape lock design: inside handle always allows free egress.
- 60 mm backset (standard). Extended backset versions (89 mm, 127 mm) available separately.
- Reversible handing — suits left or right hand doors without disassembly.
- Compatible with Lockwood 570 oval cylinders, restricted systems, and a wide range of escutcheons and turns.
- Designed for high-traffic commercial, institutional, and public buildings.
Fire Rated
- Successfully fire tested up to 4 hours on fire door assemblies (AS 1905.1 compliant).
Specifications
- Item Code: 3772NSFSS
- Function: Universal primary mortice escape lock body (MkII)
- Backset: 60 mm
- Hub: Heavy-duty hub spring
- Material: Zinc alloy case with stainless steel faceplate
- Door Thickness: 32–50 mm (extension packs available for thicker doors)
- Handing: Reversible
- Finish: Satin Stainless Steel (SS)
- Standards: AS4145.2 (Durability D8, Security S7, Corrosion C6)
3772 Mortice Lock - Dimensions
Manufacturer dimensional drawing for the Lockwood Selector 3772 Mortice Lock showing lock body dimensions, backset measurement, faceplate size, and fixing hole positions.
3772 Mortice Lock - Strike Plate Dimensions
Manufacturer dimensional drawing for the Lockwood 3772 strike plate showing overall plate dimensions, latch and bolt aperture positions, and fixing hole centres.
What's In The Box
- 1 × Lockwood 3772 MkII Universal Primary Lock (HD hub spring, 60 mm backset)
- 1 × Stainless steel faceplate
- 1 × Strike plate
- Fixing screws
- Installation instructions
Suitable Uses
- Commercial, institutional, and public buildings requiring robust escape locks.
- High-traffic doors needing enhanced hub spring strength.
- Fire-rated egress doors where compliance with AS1905.1 is mandatory.
- Retrofit replacement for Synergy 3572SC primary locks with direct compatibility.
Selector® 3772 MkII Escape Locks — Item Code Family
Selector® 3772 MkII Escape Locks — Accessories & Spares
Warranty
- Lockwood 25 Year Mechanical Warranty covers mechanical components and workmanship under normal use and correct installation.
- Electronic and electrical components are covered for 3 years (PADDE & electric mortice locks 5 years, batteries excluded).
- Keys are covered for 12 months.
- Finish warranty varies by finish type and exposure — e.g. Everbrass 25 years; Stainless/Chrome/Anodised 10 years; PVD/VIVID 10 years; Symmetry range 5 years; decorative finishes such as bronze, antique and powdercoat 2 years (natural brass ageing excluded).
- Warranty excludes misuse, improper installation, modification, or failure to maintain as specified.
Download PDF Resources
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Lockwood Selector 3700 Series Mortice Locks Catalogue |
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Lockwood 25 Year Mechanical Warranty (Conditions Apply) |
Lockwood Warranty
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary by product type, with separate cover for mechanical components, electrical and electronic parts, keys, and finishes.
The summary below sets out the standard warranty structure. All warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries. Full terms and exclusions are set out in the official Lockwood warranty document linked at the base of this page.
Warranty Summary
Finish Coverage Guide
- Everbrass finishes: up to 25 years against corrosion, tarnishing and discolouration.
- Stainless steel, polished stainless steel, chrome plating and anodised finishes: typically up to 10 years.
- PVD and VIVID finishes: typically up to 10 years.
- Symmetry range finishes: typically up to 5 years.
- Decorative finishes (Antique Copper, Architectural Bronze, Oil Rubbed Bronze, Aged Brass, Polished Brass, Satin Brass and related variants): typically up to 2 years against corrosion.
- Unlacquered brass finishes naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where the required cleaning and maintenance have not been followed.
How to Make a Claim
For full returns and warranty claim procedures, visit our Returns & Warranty page - this is kept up to date and is the authoritative reference for current claim steps.
- Contact Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries with your proof of original purchase.
- Keep the product securely packed and clearly identified, ready for assessment.
- Where a claim is escalated to the manufacturer, ASSA ABLOY may issue a case number before goods are returned.
- ASSA ABLOY assesses the claim and determines repair, replacement with the same or closest equivalent product, or refund of the purchase price.
Exclusions
- Normal wear and tear.
- Misuse, abuse, accidental damage or use outside published specifications.
- Improper maintenance or failure to follow care instructions.
- Unauthorised modification, repair or use of non-genuine parts.
- Exposure to corrosive environments including coastal air, salt spray, chemicals or pollution.
- Removal, refitment or associated labour charges.
- Products not originally sold in Australia through authorised channels.
Australian Consumer Law
These manufacturer warranties apply in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and to compensation for any other reasonably foreseeable loss or damage. Where a failure does not amount to a major failure, you are entitled to have the goods repaired or replaced.
These manufacturer warranties apply in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and to compensation for any other reasonably foreseeable loss or damage. Where a failure does not amount to a major failure, you are entitled to have the goods repaired or replaced.
